Looking for a taboo story

[Loud4321]

Family of 5, Mom, Dad, two sisters and brother. Brother comes home and noticed that the women lined up to greet their dad before dinner. While they greeted him, dad copped a feel on them. Then the son catches the dad and his sister in the washroom later. Then the dad with the other sis in her room. Eventually he gets in on the action. Can't remember the title and cant find it in the search. Tia